TY  - SER
AU  - Ablikim,M.
AU  - Ai,X.C.
AU  - Chelkov,G.A.
AU  - Achasov,M.N.
ED  - Томский государственный университет
TI  - Measurement of yCP in D0-D¯0  oscillation using quantum correlations in e+e- →D0D¯0 at  √s = 3.773 GeV
KW  - квантовые корреляции
KW  - BESIII
KW  - статьи в журналах
N1  - Библиогр.: 36 назв
N2  - We report a measurement of the parameter yCP in D0–D0 oscillations performed by taking advantage of quantum coherence between pairs of D0D0 mesons produced in e+e− annihilations near threshold. In this work, doubly-tagged D0D0 events, where one D decays to a CP eigenstate and the other D decays in a semileptonic mode, are reconstructed using a data sample of 2.92 fb−1 collected with the BESIII detector at the center-of-mass energy of √s = 3.773 GeV. We obtain yCP = (−2.0 ± 1.3 ± 0.7)%, where the first uncertainty is statistical and the second is systematic. This result is compatible with the current world average
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000526573
ER  -